Some users are having crash issues with the OC4BAv3 and OC4BAv4. Most of these crashes occur if users are running WIndows 10.
What to do:
Upgrade to OC4BAv4
Change from IOCP port 8092 to 8094 in the OC4BA.ini file in your SIOC folder.
Delete all PMDG*.ini configuration files that you ahve in your SIOC folder
Run OC4BAv4 from your SIOC folder and click Config.
Go to File menu in Config window and Reset SIOC.ini
Create a new configuration in Config